Thermoluminescent properties of ZnS:Mn nanocrystalline powders.

Autor: Ortiz-Hernández AA; DICIM-UASLP, Doctorado en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, Sierra Leona No. 530 Col. Lomas 2da. Sección, C.P. 78210 San Luis Potosí, Mexico. Electronic address: icearturoortiz@hotmail.com., Méndez García VH; CIACYT-UASLP, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología, Universidad Autónoma de San Luis Potosí, Sierra Leona No. 530 Col. Lomas 2da. Sección, C.P. 78210 San Luis Potosí, Mexico. Electronic address: victor.mendez@uaslp.mx., Pérez Arrieta ML; UAF-UAZ, Unidad Académica de Física, Universidad Autónoma de Zacatecas, Calzada Solidaridad esquina con Paseo la Bufa s/n, C.P. 98060 Zacatecas, Mexico. Electronic address: mlp.arrieta@gmail.com., Ortega Sígala JJ; UAF-UAZ, Unidad Académica de Física, Universidad Autónoma de Zacatecas, Calzada Solidaridad esquina con Paseo la Bufa s/n, C.P. 98060 Zacatecas, Mexico. Electronic address: jjosila@hotmail.com., Araiza Ibarra Jde J; UAF-UAZ, Unidad Académica de Física, Universidad Autónoma de Zacatecas, Calzada Solidaridad esquina con Paseo la Bufa s/n, C.P. 98060 Zacatecas, Mexico. Electronic address: araizaib@hotmail.com., Vega-Carrillo HR; UAEN-UAZ, Unidad Académica de Estudios Nucleares, Universidad Autonoma de Zacatecas Calle Ciprés #10, Fraccionamiento La Peñuela, C.P. 98068 Zacatecas, Mexico. Electronic address: hrvegacarrillo@yahoo.com.mx., Falcony Guajardo C; Departamento de Física, Cinvestav IPN, Apartado Postal 14-740, C.P. 07000 México D.F., Mexico. Electronic address: cfalcony@fis.cinvestav.mx.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2015 May; Vol. 99, pp. 105-9. Date of Electronic Publication: 2015 Feb 13.
DOI: 10.1016/j.apradiso.2015.02.006
Abstrakt: Thermoluminescent ZnS nanocrystals doped with Mn(2+) ions were synthesized by chemical co-precipitation method. From X-ray diffraction studies it was observed that the synthesized nanoparticles have cubic zinc blende structure with average sizes of about 40-50nm. Morphology was analyzed by TEM. Photoluminescence studies showed two transitions, one of them close to 396nm and other close to 598nm, which is enhanced with increasing dopant concentration, this behavior was also observed in the cathodoluminescence spectrum. The thermoluminescence gamma dose-response has linear behavior over dose range 5-100mGy, the glow curve structure shows two glow peaks at 436K and at 518K that were taken into account to calculate the kinetic parameters using the Computerized Glow Curve Deconvolution procedure.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: